EDITORIAL COMMITTEE OF THE 



UNITED STATES DEPARTMENT OF AGRICULTURE AND 



THE ASSOCIATION OF AMERICAN AGRICULTURAL 



COLLEGES AND EXPERIMENT STATIONS 



FOR THE DBPARTMENT 

 KARL F. KELLERMAN, Chairman 



Pkysiotogist and Associate Chkf, Bureau 

 of Plant Industry 



EDWIN W. ALIvEN 



Chief, Office of Experiment Staiions 



CHARLES L. MARLATT 



Entomologist and A snstant Chief, Bureau 

 of Eniomolo^ 



FOR THE ASSOCIATIOH 

 HP. ARMSBY 



Director, Instiiufe of Animal NuirHitm, The 

 Penntflvimia State College 



E. M. FREEMAN 



Botanist, Plant Pathologist and AttistOHt 

 Dean, Agriculiural Experiment Station of 

 the University of Minnesota 



J. G. LIPMAN 



Director, New Jersey Agricultural Experi- 

 ment Station, Rutgers College 



All corresponclence regarding articles froju the Department of Agriculture should be 

 addressed to Karl F. Kellerraan, Jotimal of Agricultural Research, Washington, D. C. 



All correspondence regarding articles from State Experiment Stations should be 

 addressed to H. P. Armsby, Institute of Animal Nutrition, State College, Pa. 



